25 #define BITSTREAM_READER_LE
64 ((unsigned)avctx->
height / 8);
78 for (i = 0; i < 3; i++)
103 for (i = 0; i <
size; i++) {
104 unsigned mask_bits =
get_bits(gb, 4);
108 for (j = 0; j < 4; j++) {
109 if (mask_bits & (1 << j))
130 if (value != (1 + ((1 << 3) - 1)))
134 if (value != (1 + ((1 << 3) - 1)) + ((1 << 7) - 1))
141 int* codebook_index,
int superblock_index)
145 unsigned block_index,
depth;
148 static const char transitions[3][2] = { {2, 1}, {0, 2}, {1, 0} };
149 *codebook_index = transitions[*codebook_index][
get_bits1(gb)];
157 block_index = depth ?
get_bits(gb, depth) : 0;
159 if (*codebook_index == 1) {
173 uint32_t *dst = sb->
pixels32 + index + (index & -4);
181 uint16_t*
src,
unsigned src_stride)
185 for (y = 0; y < 8; y++)
186 memcpy(dest + y * dest_stride, src + y * src_stride,
187 sizeof(uint16_t) * 8);
189 for (y = 0; y < 8; y++)
190 memset(dest + y * dest_stride, 0,
sizeof(uint16_t) * 8);
194 0x4, 0x8, 0x40, 0x80,
195 0x100, 0x200, 0x1000, 0x2000,
196 0x400, 0x800, 0x4000, 0x8000};
199 void *
data,
int *got_frame,
202 int buf_size = avpkt->
size;
210 unsigned superblock_index, cb_index = 1,
211 superblock_col_index = 0,
212 superblocks_per_row = avctx->
width / 8, skip = -1;
214 uint16_t* old_frame_data, *new_frame_data;
215 unsigned old_stride, new_stride;
232 if (!(frame_flags & 0x114) || !(frame_flags & 0x7800000)) {
245 for (i = 0; i < 3; i++) {
246 if (frame_flags & (1 << (17 + i))) {
247 unsigned cb_depth, cb_size;
252 cb_depth =
av_log2(cb_size - 1) + 1;
258 cb_size = 1 << cb_depth;
276 new_frame_data = (uint16_t*)frame->
data[0];
277 new_stride = frame->
linesize[0] / 2;
278 old_frame_data = (uint16_t*)s->
frame->
data[0];
282 superblock_index++) {
285 unsigned multi_mask = 0;
295 old_frame_data, old_stride);
298 old_frame_data, old_stride);
305 for (i = 0; i < 16; i++) {
313 unsigned inv_mask =
get_bits(&gb, 4);
314 for (i = 0; i < 4; i++) {
315 if (inv_mask & (1 << i)) {
316 multi_mask ^= 0xF << i*4;
318 multi_mask ^=
get_bits(&gb, 4) << i*4;
322 for (i = 0; i < 16; i++) {
329 }
else if (frame_flags & (1 << 16)) {
339 superblock_col_index++;
343 if (superblock_col_index == superblocks_per_row) {
344 new_frame_data += new_stride * 8 - superblocks_per_row * 8;
346 old_frame_data += old_stride * 8 - superblocks_per_row * 8;
347 superblock_col_index = 0;
353 "Escape sizes: %i, %i, %i\n",